/*
 * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package javax.swing.colorchooser;

import java.awt.*;
import java.io.*;

/**
  * Center-positioning layout manager.
  * @author Tom Santos
  * @author Steve Wilson
  */
class CenterLayout implements LayoutManager, Serializable {
    public void addLayoutComponent(String name, Component comp) {
    }

    public void removeLayoutComponent(Component comp) {
    }

    public Dimension preferredLayoutSize(Container container) {
        Component c = container.getComponent(0);
        if (c != null) {
            Dimension size = c.getPreferredSize();
            Insets insets = container.getInsets();
            size.width += insets.left + insets.right;
            size.height += insets.top + insets.bottom;
            return size;
        } else {
            return new Dimension(0, 0);
        }
    }

    public Dimension minimumLayoutSize(Container cont) {
        return preferredLayoutSize(cont);
    }

    public void layoutContainer(Container container) {
        try {
            Component c = container.getComponent(0);

            c.setSize(c.getPreferredSize());
            Dimension size = c.getSize();
            Dimension containerSize = container.getSize();
            Insets containerInsets = container.getInsets();
            containerSize.width -= containerInsets.left + containerInsets.right;
            containerSize.height -= containerInsets.top + containerInsets.bottom;
            int componentLeft = (containerSize.width / 2) - (size.width / 2);
            int componentTop = (containerSize.height / 2) - (size.height / 2);
            componentLeft += containerInsets.left;
            componentTop += containerInsets.top;

            c.setBounds(componentLeft, componentTop, size.width, size.height);
        } catch (Exception e) {
        }
    }
}
